What does 'preserve paragraph breaks' do?

When enabled, blank lines (double line breaks) are kept as paragraph separators, but single line breaks within a paragraph are removed.

Can I replace line breaks with a custom character?

Yes. Choose 'Custom' from the Replace With dropdown and enter any character or string.

Is my text sent to a server?

No. Everything runs in your browser. Your text never leaves your device.

When would I use this tool?

Common uses: cleaning up copy-pasted PDF text, joining word-wrapped lines from emails, preparing text for a single-line API input.

删除换行符 — 在线免费合并文本行

替换为：保留段落分隔

结果

  <section class="ds-seo-section">
    <h2 class="ds-seo-section__title">什么是删除换行符工具？</h2>
    <p>删除换行符工具会通过去除单个换行符，将多行文本合并为一个连续段落，并可选择将空行保留为段落分隔符。</p>
  </section>
  <section class="ds-seo-section"><h2 class="ds-seo-section__title">如何使用删除换行符</h2><ol><li>将文本粘贴到输入框中。</li><li>选择要用来替换换行符的内容（空格、无、逗号或自定义）。</li><li>切换“保留段落分隔”以保留空行分隔符。</li><li>点击删除换行符，然后复制或使用结果。</li></ol></section>
  </div>
  <div class="ds-related-tools"><h2 class="ds-related-title">相关工具</h2><div class="ds-related-grid"><a href="whitespace-trimmer.html" class="ds-related-card"><span class="ds-related-icon">✂️</span><div><div class="ds-related-name">空白字符清理</div><div class="ds-related-desc">删除多余空格和空白字符</div></div></a><a href="text-cleaner.html" class="ds-related-card"><span class="ds-related-icon">🧹</span><div><div class="ds-related-name">文本清理</div><div class="ds-related-desc">从文本中删除不需要的字符</div></div></a><a href="duplicate-line-remover.html" class="ds-related-card"><span class="ds-related-icon">🗑️</span><div><div class="ds-related-name">重复行删除</div><div class="ds-related-desc">从文本中删除重复行</div></div></a></div></div>
  <details class="ds-seo-more"><summary class="ds-seo-more__toggle"><span>了解更多</span><span class="ds-seo-more__arrow">▾</span></summary><div class="ds-seo-more__body"><details class="ds-seo-collapse"><summary>常见使用场景</summary><div class="ds-seo-collapse__body"><ul><li>清理从 PDF 复制的每行都换行的文本</li><li>将自动换行的电子邮件文本合并为可读段落</li><li>为单行数据库字段准备多行文本</li><li>将多行列表转换为逗号分隔列表</li></ul></div></details><details class="ds-seo-collapse"><summary>常见问题</summary><div class="ds-seo-collapse__body"><div class="ds-seo-faq-item"><strong>我的文本会发送到服务器吗？</strong><p>不会。所有内容都在你的浏览器中运行。你的文本绝不会离开你的设备。</p></div><div class="ds-seo-faq-item"><strong>“保留段落分隔”有什么作用？</strong><p>启用后，双换行符（空行）会保留为段落分隔符，而段落内的单个换行符会被删除。</p></div></div></details></div></details>
  <!-- AUTO-SEO-SECTIONS:END -->
</div>
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